Revised list of TBCs

1 files changed, 0 insertions, 598 deletions

diff --git a/Machine_Design_by_U.C._Jindal/Ch22.ipynb b/Machine_Design_by_U.C._Jindal/Ch22.ipynb
deleted file mode 100755
index 30ed5549..00000000
--- a/Machine_Design_by_U.C._Jindal/Ch22.ipynb
+++ /dev/null
@@ -1,598 +0,0 @@
-{
- "metadata": {
-  "name": "",
-  "signature": "sha256:b283e3fcd471f1cbe397d09e22017ed17e30966a86b52dc70653c73e3f5c2124"
- },
- "nbformat": 3,
- "nbformat_minor": 0,
- "worksheets": [
-  {
-   "cells": [
-    {
-     "cell_type": "heading",
-     "level": 1,
-     "metadata": {},
-     "source": [
-      "Ch:22 Friction clutches"
-     ]
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "exa 22-1 - Page 588"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "from __future__ import division\n",
-      "from math import sqrt, pi\n",
-      "u=0.28 #(coefficient of friction)\n",
-      "N=300 #(Engine rpm)\n",
-      "I=7.2 \n",
-      "Pmax= 0.1# \n",
-      "R1=70#\n",
-      "R2=110#\n",
-      "n=2# #(Both sides of the plate are effective)\n",
-      "#Using Uniform Wear Theory\n",
-      "#Axial Force W\n",
-      "W=n*pi*Pmax*R1*(R2-R1)#\n",
-      "#Frictional Torque Tf\n",
-      "Tf=u*W*(R1+R2)/2*(10**-3)#\n",
-      "w=2*pi*N/60#\n",
-      "#Power P\n",
-      "P=Tf*w#\n",
-      "#Torque = Mass moment of inertia*angular acceleration\n",
-      "a=Tf/I#\n",
-      "t=w/a# \n",
-      "#Angle turned by driving shaft theta1 through which slipping takes place\n",
-      "theta1=w*t#\n",
-      "#angle turned by driven shaft theta2\n",
-      "theta2=a*(t**2)/2#\n",
-      "E=Tf*(theta1-theta2)#\n",
-      "print \"\\nThe force is %0.1f N\"%(W)#\n",
-      "print \"\\nThe Torque is %0.2f Nm\"%(Tf)#\n",
-      "print \"\\nThe Power is %0.0f W\"%(P)#\n",
-      "print \"\\nThe angular acceleration is %0.2f rad/sec**2\"%(a)#\n",
-      "print \"\\nThe time taken is %0.1f sec\"%(t)#\n",
-      "print \"\\nThe energy is %0.2f Nm\"%(E)#\n",
-      "\n",
-      "#The difference in the answer of energy 'E' is due to rounding-off of values."
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "\n",
-        "The force is 1759.3 N\n",
-        "\n",
-        "The Torque is 44.33 Nm\n",
-        "\n",
-        "The Power is 1393 W\n",
-        "\n",
-        "The angular acceleration is 6.16 rad/sec**2\n",
-        "\n",
-        "The time taken is 5.1 sec\n",
-        "\n",
-        "The energy is 3553.06 Nm\n"
-       ]
-      }
-     ],
-     "prompt_number": 12
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "exa 22-2 - Page 589"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "#Power P\n",
-      "P=80*10**3# #(Watt)\n",
-      "N=3000# #(Engine rpm)\n",
-      "w=2*pi*3*10**3/60\n",
-      "Tf=8*10**4/w#\n",
-      "Rm=100##(mm)\n",
-      "p=0.2 #N/mm**2\n",
-      "u=0.22 \n",
-      "# let width b= (R1-R2). \n",
-      "#Axial force W=2*pi*Rm*b*p\n",
-      "#Torque T=u*W*Rm\n",
-      "b=Tf/(u*2*pi*(Rm**2)*p)#\n",
-      "b=50# \n",
-      "R2=Rm+b#\n",
-      "R1=Rm-b#\n",
-      "Di=2*R1# #inner diameter\n",
-      "W=2*pi*Rm*b*p#\n",
-      "n=8# #n is number of springs\n",
-      "#Axial force per spring W1\n",
-      "W1=W/n#\n",
-      "W1=W1+15#\n",
-      "#axial deflection del\n",
-      "Del=10# \n",
-      "#stiffness k\n",
-      "k=W1/Del#\n",
-      "# Spring index C\n",
-      "C=6#\n",
-      "#number of coils n1\n",
-      "n1=6# #Assumption\n",
-      "d=k*n*n1*(C**3)/(80*10**3)#\n",
-      "d=11# # Rounding off to nearest standard value\n",
-      "D=C*d#\n",
-      "clearance=2#\n",
-      "FL=((n1+2)*d)+(2*Del)+clearance# # two end coils, therefore (2*del)\n",
-      "\n",
-      "print \"\\nThe Torque is %0.2f Nm\"%(Tf)#\n",
-      "print \"\\nThe width is %0.0f mm\"%(b)#\n",
-      "print \"\\nThe force is %0.0f N\"%(W)#\n",
-      "print \"\\nThe Axial force per spring is %0.0f N\"%(W1)#\n",
-      "print \"\\nThe Spring stiffness is %0.0f N/mm\"%(k)#\n",
-      "print \"\\nThe Spring wire diameter is %0.0f mm\"%(d)#\n",
-      "print \"\\nThe Mean coil diameter is %0.0f mm\"%(D)#\n",
-      "print \"\\nThe Free length is %0.0f mm\"%(FL)#"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "\n",
-        "The Torque is 254.65 Nm\n",
-        "\n",
-        "The width is 50 mm\n",
-        "\n",
-        "The force is 6283 N\n",
-        "\n",
-        "The Axial force per spring is 800 N\n",
-        "\n",
-        "The Spring stiffness is 80 N/mm\n",
-        "\n",
-        "The Spring wire diameter is 11 mm\n",
-        "\n",
-        "The Mean coil diameter is 66 mm\n",
-        "\n",
-        "The Free length is 110 mm\n"
-       ]
-      }
-     ],
-     "prompt_number": 13
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "exa 22-3 - Page 589"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "#Power P\n",
-      "P=40*10**3 #Watt\n",
-      "n1=100# #rpm\n",
-      "n2=400# #rpm\n",
-      "#Speed factor Ks\n",
-      "Ks=0.9+0.001*n2#\n",
-      "#Clutch power Pc\n",
-      "Pc=P*n2/(n1*Ks)*10**-3#\n",
-      "print \"\\nThe Speed factor is %0.1f \"%(Ks)#\n",
-      "print \"\\nThe clutch poweris %0.0f KW\"%(Pc)#"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "\n",
-        "The Speed factor is 1.3 \n",
-        "\n",
-        "The clutch poweris 123 KW\n"
-       ]
-      }
-     ],
-     "prompt_number": 14
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "exa 22-4 - Page 590"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "# plot Torque vs Ro/Ri\n",
-      "#x=Ro/Ri\n",
-      "#According to Uniform Wear theory\n",
-      "x=[0, 0.2, 0.4, 0.577, 0.6, 0.8, 1.0]#\n",
-      "n=len(x)#\n",
-      "Tf = range(0,n)\n",
-      "for i in range(0,n):\n",
-      "    Tf[i]=(x[i]-(x[i]**3))#\n",
-      "\n",
-      "%matplotlib inline\n",
-      "from matplotlib.pyplot import plot, xlabel, ylabel, show, grid\n",
-      "plot (x,Tf)#\n",
-      "xlabel(' Ro/Ri ')#\n",
-      "ylabel('Tf')#\n",
-      "grid()#\n",
-      "show()"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "metadata": {},
-       "output_type": "display_data",
-       "png": 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f9oIxbx78+c/pf4KViMhYtdpfKpMLRtzaXTBWr4YZM4IrDIpyGW2lUnn5rWjZ\nKRYhxSJU9Fh8+MNwwglBTWM0WbxKKpO050JEiiiJ/lKle4ehPRciUkSt9JdSSioCfc6FiBTZwoWw\nciXccsvIxyklNYoi7blopvGS0jJTLEKKRagMsYi7v1RpFgx9zoWIFF3c/aVKkZLSngsRKYso/aWU\nkhqBPudCRMoizv5ShV8w8v45F1GVIT8blWIRUixCZYpFXP2lCr1gaM+FiJTRzJmwaVOQnuqkQtcw\ntOdCRMpqpP5S2ofRQHsuRKTMRuovpaJ3naLvuWimTPnZ0SgWIcUiVLZYTJoEU6fCTTd17jkLuWBo\nz4WISOf7SxUuJaU9FyIigeH6SyklVaM9FyIiAbPgEtvrr+/M8xVqwSjLnotmypafHYliEVIsQmWN\nRSf7SxVmwdCeCxGRV+tkf6nC1DC050JEpLnG/lKlrmEMDARpqEWLtFiIiDTqVH+pWBcMM+szs41m\nttnMLhrmmOtqj68zsyNbORfKueeimbLmZ5tRLEKKRajssehEf6nYFgwzGwd8FegDDgVmm9khDcec\nBBzk7pOBTwCLop47RHsuAtVqNe0pZIZiEVIsQmWPRSf6S8X5DmMKsMXdB9x9J7AMmN5wzIeA/wvg\n7quBLjPbN+K5AHzqU7B4MUyYENd/Ix9efPHFtKeQGYpFSLEIlT0Wu+8eXBg0lktsx3duOq8yCdha\nN94GvC/CMZOAt0Y4F9CeCxGRqM46K+gv1a4432FEvfxqTGXqMu65aGZgYCDtKWSGYhFSLEKKRdhf\nql2xXVZrZscAl7t7X218MTDo7gvqjrkBqLj7stp4I/DXwAGjnVu7P7/XBIuIpKidy2rjTEmtASab\nWTfwDHAqMLvhmLuAecCy2gLzors/a2bPRzi3rf+wiIi0J7YFw913mdk8YAUwDvimu28wszm1xxe7\n+91mdpKZbQH+AJwx0rlxzVVEREaX653eIiKSnFzs9B7LBsCiGS0WZnZaLQbrzeynZnZEGvNMQtTN\nnWb2XjPbZWb/M8n5JSni70ivma01s5+bWSXhKSYmwu/Im8zsh2ZWrcWiP4Vpxs7M/o+ZPWtmj41w\nTGuvm+6e6S+ClNQWoBvYHagChzQccxJwd+32+4CH0p53irF4P/C62u2+Msei7rj7gR8Ap6Q97xR/\nLrqAx4H9auM3pT3vFGNxOfD5oTgAzwPj0557DLE4HjgSeGyYx1t+3czDO4x2NwC+OdlpJmLUWLj7\nKnd/qTYHBMjLAAAD3UlEQVRcDeyX8ByTEnVz5yeBW4HnkpxcwqLE4n8Bt7n7NgB3/03Cc0xKlFj8\nChj6lOuJwPPuvivBOSbC3R8EfjvCIS2/buZhwRhuc99oxxTxhTJKLOp9DLg71hmlZ9RYmNkkgheL\nRbW7ilqwi/JzMRl4g5k9YGZrzOz0xGaXrCix+DpwmJk9A6wDPpXQ3LKm5dfNOC+r7ZR2NwAW8cUh\n8v/JzE4AzgSOjW86qYoSi2uBT7u7m5kxxk2iGRYlFrsD7wGmAnsAq8zsIXffHOvMkhclFpcAVXfv\nNbMDgXvN7N3u/vuY55ZFLb1u5mHB2A7sXzfen2AlHOmY/Wr3FU2UWFArdH8d6HP3kd6S5lmUWBxF\nsMcHglz1B81sp7vflcwUExMlFluB37j7H4E/mtmPgXcDRVswosTivwNXArj7L8zsKeBggr1jZdLy\n62YeUlIvbwA0swkEm/gaf+HvAj4KL+8wf9Hdn012mokYNRZm9jbgduAj7r4lhTkmZdRYuPs73P0A\ndz+AoI5xdgEXC4j2O/I94DgzG2dmexAUOZ9IeJ5JiBKLjcA0gFrO/mDgl4nOMhtaft3M/DsMH8MG\nwKKJEgvgUuD1wKLaX9Y73X1KWnOOS8RYlELE35GNZvZDYD0wCHzd3Qu3YET8ufhXYImZrSP4o/lC\nd38htUnHxMy+Q9Bq6U1mthW4jCA12fbrpjbuiYhIJHlISYmISAZowRARkUi0YIiISCRaMEREJBIt\nGCIiEokWDBERiUQLhkiLzGyg1j6+amb3mdlbI5zzFjNbYWZvN7M/1rUZ/4aZ7VY75igz+3L8/wOR\n9mjBEGmdA73u3gP8BLg4wjl9wA9rt7e4+5HAEQSfXz8TwN0fdfeyNsKTHNCCITI2DwEHAtTaUdxf\n+zCa+8ysvk/P/wCWU9fszd0HgYfrzu81s+8nN3WR1mjBEGnP0At/H/Dz2u2vAEvc/d3AvwPXAZjZ\nOOBgd9/4iicwey1B64afI5IDme8lJZJRD5jZG4BdwLtq9x0DzKjdvgm4qnb7fQQfZjXkQDNbS5CO\n+pG7F/UzS6Rg9A5DpD29wNsJUlJn1d3f7DM3PkiQjhryi1oN40DgnWZ2dFyTFOkkLRgibXL3vwDz\ngfPNbC/g/wGzag+fBvy4dvsDwH1Nzn8e+AxB91SRzNOCIdK6l1s8u/uvCT5/ZC7B54efUWubfRrw\nKTPbB/iTu/9hmPPvBP6bmU2p3a/20ZJZam8uEiMzOw2Y5O5XjXqwSMZpwRARkUiUkhIRkUi0YIiI\nSCRaMEREJBItGCIiEokWDBERiUQLhoiIRKIFQ0REIvn/nx/g/9fIFs8AAAAASUVORK5CYII=\n",
-       "text": [
-        "<matplotlib.figure.Figure at 0x7fe9440af310>"
-       ]
-      }
-     ],
-     "prompt_number": 15
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "exa 22-5 - Page 591"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "n1=4#\n",
-      "n2=3#\n",
-      "n=(n1+n2-1)#\n",
-      "R2=80#\n",
-      "R1=50#\n",
-      "#According to Uniform Pressure Theory\n",
-      "#W=p*pi*((R2**2)-(R1**2)) T=n*2*u*W*((R2**3)-(R1**3))/(((R2**2)-(R1**2))*3)\n",
-      "P=15*10**3#\n",
-      "N=1400#\n",
-      "u=0.25#\n",
-      "w=2*pi*N/60#\n",
-      "T=P/w#\n",
-      "W=T*3*((R2**2)-(R1**2))/(n*2*u*((R2**3)-(R1**3)))*10**3#\n",
-      "p=W/(pi*((R2**2)-(R1**2)))#\n",
-      "print \"\\nThe angular speed is %0.2f rad/sec\"%(w)#\n",
-      "print \"\\nThe Torque is %0.3f Nm\"%(T)#\n",
-      "print \"\\nThe uniform pressure is %0.3f N/mm**2\"%(p)#\n",
-      "print \"\\nThe Force is %0.1f N\"%(W)#"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "\n",
-        "The angular speed is 146.61 rad/sec\n",
-        "\n",
-        "The Torque is 102.314 Nm\n",
-        "\n",
-        "The uniform pressure is 0.084 N/mm**2\n",
-        "\n",
-        "The Force is 1031.1 N\n"
-       ]
-      }
-     ],
-     "prompt_number": 16
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "exa 22-6 - Page 592"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "P=5*10**3#\n",
-      "N=1000#\n",
-      "w=2*pi*N/60#\n",
-      "Rm=50#\n",
-      "pm=0.3#\n",
-      "Tf=P/w#\n",
-      "u=0.1#\n",
-      "R2=50*2/(0.6+1)#\n",
-      "R1=0.6*R2#\n",
-      "#According to uniform Wear theory\n",
-      "W=pm*Rm*(R2-R1)*2*pi#\n",
-      "n=Tf*(10**3)/(u*W*Rm)#\n",
-      "pmax=pm*Rm/R1#\n",
-      "print \"\\nThe angular speed is %0.2f rad/sec\"%(w)#\n",
-      "print \"\\nThe Torque is %0.3f Nm\"%(Tf)#\n",
-      "print \"\\nThe Inner radius is %0.1f mm\"%(R1)#\n",
-      "print \"\\nThe Outer radius is %0.1f mm\"%(R2)#\n",
-      "print \"\\nThe number of contacting surfaces is %0.0f \"%(n)#\n",
-      "print \"\\nThe max. pressure is %0.1f N/mm**2\"%(pmax)#"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "\n",
-        "The angular speed is 104.72 rad/sec\n",
-        "\n",
-        "The Torque is 47.746 Nm\n",
-        "\n",
-        "The Inner radius is 37.5 mm\n",
-        "\n",
-        "The Outer radius is 62.5 mm\n",
-        "\n",
-        "The number of contacting surfaces is 4 \n",
-        "\n",
-        "The max. pressure is 0.4 N/mm**2\n"
-       ]
-      }
-     ],
-     "prompt_number": 17
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "exa 22-7 - Page 593"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "P=12*10**3#\n",
-      "N=750 #Speed=N\n",
-      "w=2*pi*N/60#\n",
-      "Tf=P/w#\n",
-      "p1=0.12#\n",
-      "a=12.5##Semi-cone angle\n",
-      "u=0.3#\n",
-      "k=u*0.18246*1.121/0.21644#\n",
-      "R1=(Tf*(10**3)/k)**(1/3)#\n",
-      "R2=R1*1.242#\n",
-      "Rm=1.121*R1#\n",
-      "W=2*pi*p1*R1*(R2-R1)#\n",
-      "print \"\\nThe angular speed is %0.2f rad/sec\"%(w)#\n",
-      "print \"\\nThe Torque is %0.1f Nm\"%(Tf)#\n",
-      "print \"\\nThe Inner radius is %0.1f mm\"%(R1)#\n",
-      "print \"\\nThe Outer radius is %0.1f mm\"%(R2)#\n",
-      "print \"\\nThe mean radius is %0.2f mm\"%(Rm)#\n",
-      "print \"\\nThe axial force is %0.0f N\"%(W)#\n",
-      "\n",
-      "#The difference in the answer is due to rounding-off of values."
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "\n",
-        "The angular speed is 78.54 rad/sec\n",
-        "\n",
-        "The Torque is 152.8 Nm\n",
-        "\n",
-        "The Inner radius is 81.4 mm\n",
-        "\n",
-        "The Outer radius is 101.1 mm\n",
-        "\n",
-        "The mean radius is 91.23 mm\n",
-        "\n",
-        "The axial force is 1208 N\n"
-       ]
-      }
-     ],
-     "prompt_number": 18
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "exa 22-8 - Page 594"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "from math import sin\n",
-      "#semi-cone angle is given as 15 degree\n",
-      "k=sin(15*pi/180)#\n",
-      "u=0.3#\n",
-      "W=300#\n",
-      "Rm=90/2#\n",
-      "Tf=u*W*Rm/k#\n",
-      "Tf=Tf*(10**-3)#\n",
-      "I=0.4#\n",
-      "a=Tf/I#\n",
-      "N=1440#\n",
-      "w=2*pi*N/60#\n",
-      "t=w/a#\n",
-      "#During Slipping\n",
-      "theta1=w*t#\n",
-      "theta2=theta1/2#\n",
-      "U=Tf*(theta1-theta2)#\n",
-      "print \"\\nThe Torque is %0.3f Nm\"%(Tf)#\n",
-      "print \"\\nThe angular acceleration is %0.3f rad/sec**2\"%(a)#\n",
-      "print \"\\nThe angular speed is %0.1f rad/sec\"%(w)#\n",
-      "print \"\\nThe time taken is %0.2f sec\"%(t)#\n",
-      "print \"\\nThe Energy lost in friction is %0.0f Nm\"%(U)#"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "\n",
-        "The Torque is 15.648 Nm\n",
-        "\n",
-        "The angular acceleration is 39.120 rad/sec**2\n",
-        "\n",
-        "The angular speed is 150.8 rad/sec\n",
-        "\n",
-        "The time taken is 3.85 sec\n",
-        "\n",
-        "The Energy lost in friction is 4548 Nm\n"
-       ]
-      }
-     ],
-     "prompt_number": 19
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "exa 22-9 - Page 595"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "P=15*10**3#\n",
-      "Ka=1.25#\n",
-      "N=1500#\n",
-      "w=2*pi*N/60#\n",
-      "Tf=P/w#\n",
-      "d=(Tf*16/(50*pi))**(1/3)#\n",
-      "d=25#\n",
-      "Rm=5*d#\n",
-      "Pav=0.12#\n",
-      "u=0.22#\n",
-      "b=Tf/(pi*u*Pav*(Rm**2))#\n",
-      "b=40#\n",
-      "R1=Rm-(b*sin(15*pi/180)/2)#\n",
-      "R2=Rm+(b*sin(15*pi/180)/2)#\n",
-      "print \"\\nThe Torque is %0.2f Nm\"%(Tf)#\n",
-      "print \"\\nThe shaft diameter is %0.0f mm\"%(d)#\n",
-      "print \"\\nThe width is %0.0f mm\"%(b)#\n",
-      "print \"\\nThe Inner radius is %0.1f mm\"%(R1)#\n",
-      "print \"\\nThe Outer radius is %0.1f mm\"%(R2)#"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "\n",
-        "The Torque is 95.49 Nm\n",
-        "\n",
-        "The shaft diameter is 25 mm\n",
-        "\n",
-        "The width is 40 mm\n",
-        "\n",
-        "The Inner radius is 119.8 mm\n",
-        "\n",
-        "The Outer radius is 130.2 mm\n"
-       ]
-      }
-     ],
-     "prompt_number": 20
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "exa 22-10 - Page 596"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "w2=2*pi*1400/60#\n",
-      "w1=0.8*w2#\n",
-      "P=40*10**3#\n",
-      "T=P/w2#\n",
-      "n=4#\n",
-      "T1=T/4#\n",
-      "R=0.16##Inner radius of drum\n",
-      "r=0.13##radial distance of each shoe from axis of rotation\n",
-      "u=0.22##coefficient of friction\n",
-      "x=u*r*R*((w2**2)-(w1**2))\n",
-      "m =T1/x#\n",
-      "l=R*pi/3#\n",
-      "N=T1/(R*u)#\n",
-      "p=1*10**5#\n",
-      "b=N/(p*l)*10**3#\n",
-      "print \"\\nThe full speed is %0.1f rad/sec\"%(w2)#\n",
-      "print \"\\nThe engagement speed is %0.2f rad/sec\"%(w1)#\n",
-      "print \"\\nThe number of shoes is %0.0f \"%(n)#\n",
-      "print \"\\nThe Torque is %0.1f Nm\"%(T)#\n",
-      "print \"\\nThe Torque per shoe is %0.1f Nm\"%(T1)#\n",
-      "print \"\\nThe mass per shoe is %0.2f kg\"%(m)#\n",
-      "print \"\\nThe length of friction lining is %0.5f m\"%(l)#\n",
-      "print \"\\nThe width is %0.1f mm\"%(b)#"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "\n",
-        "The full speed is 146.6 rad/sec\n",
-        "\n",
-        "The engagement speed is 117.29 rad/sec\n",
-        "\n",
-        "The number of shoes is 4 \n",
-        "\n",
-        "The Torque is 272.8 Nm\n",
-        "\n",
-        "The Torque per shoe is 68.2 Nm\n",
-        "\n",
-        "The mass per shoe is 1.93 kg\n",
-        "\n",
-        "The length of friction lining is 0.16755 m\n",
-        "\n",
-        "The width is 115.7 mm\n"
-       ]
-      }
-     ],
-     "prompt_number": 21
-    }
-   ],
-   "metadata": {}
-  }
- ]
-}
\ No newline at end of file